CMP2 with JPA Update

[Dain Sundstrom]

I have created a bunch of subtasks for https://issues.apache.org/jira/ 
browse/OPENEJB-123 so you can track my progress.

Currently, I have CMP 1.x working and a good portion of CMP 2.x.  For  
2.x, I haven't written the code that generates concrete subclasses of  
the abstract CMP 2.x entity bean class, so you have to code them by  
hand like this:

http://svn.apache.org/viewvc/incubator/openejb/trunk/openejb3/itests/ 
openejb-itests-beans/src/main/java/org/apache/openejb/test/entity/cmr/ 
onetomany/ABean.java?revision=487456&view=markup

This is the next thing I'm going to work on which means I need to get  
JPA runtime enhancement working (since I'll be generating the classes  
at runtime).

Anyways, other then the class generation junk, the rest of the code  
base is dirt simple, and will get even simper of the next few weeks,  
so if you get some free time give it a read (also the MDB container :))

-dain